US3584354A - Machine for moulding the short sides of building elements having a u-shaped cross section - Google Patents

Machine for moulding the short sides of building elements having a u-shaped cross section Download PDF

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Publication number
US3584354A
US3584354A US899A US3584354DA US3584354A US 3584354 A US3584354 A US 3584354A US 899 A US899 A US 899A US 3584354D A US3584354D A US 3584354DA US 3584354 A US3584354 A US 3584354A
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US
United States
Prior art keywords
machine
moulding
moulds
walls
building elements
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US899A
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English (en)
Inventor
Per Olof Jonell
Sven Melker Nilsson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
INGENIORSFIRMAN NILCON AB
Original Assignee
Nilcon Ab Ing Firman
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Filing date
Publication date
Application filed by Nilcon Ab Ing Firman filed Critical Nilcon Ab Ing Firman
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Publication of US3584354A publication Critical patent/US3584354A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
    • B28B23/18—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members for the production of elongated articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
    • B28B1/084—Producing shaped prefabricated articles from the material by vibrating or jolting the vibrating moulds or cores being moved horizontally for making strands of moulded articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/12—Apparatus or processes for treating or working the shaped or preshaped articles for removing parts of the articles by cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/16—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
    • B28B7/168—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes for holders or similar hollow articles, e.g. vaults, sewer pits

Definitions

  • the machine comprises two inner moulds being spaced apart in the longitudinal direction of the machine and serving to form one side of the mould for moulding the end wall, and a blade adapted to be raised and lowered in the gap between the inner moulds and to serve as an intermediate mould when moulding the end walls of two successively disposed building elements.
  • Such concrete strings are moulded in lengths of about 100l50 meters and divided into desired lengths to form building elements at the ends of which concrete end walls are attached such that the elements obtain the shape of a cotfer.
  • the moulding of the end or short walls must take place before the concrete of the moulded channel-shaped concrete string bottom and walls has had time to set and harden.
  • the moulding of the end or short walls has hitherto been carried out more or less manually.
  • the purpose of the present invention is to facilitate the manufacture of these cotter-like building elements such that it becomes possible to manufacture them in series. This increases the rate of production while at the same time decreasing the building element manufacturing costs.
  • the machine in accordance with the invention for moulding the end walls comprises (a) means for cutting the armouring-irons at two different slightly spaced places,
  • a blade being adapted to be raised and lowered in the gap between the inner moulds and to serve as an intermediate mould when moulding the end walls of two successively disposed building elements, the said blade being arranged to cut off that portion of the walls where the cutting means has severed the armouring-irons.
  • FIG. 1 is a side view of a machine in accordance with the invention for moulding the short or end walls of the building elements.
  • FIG. 2 shows, on an enlarged scale, a vertical section through the machine along a line 11-11 in FIG. 1, the left half of the figure showing the blade of the machine in its upper position and the right half thereof showing the blade in its lower position.
  • FIG. 3 shOWs a vertical section through the machine along a line IIIIII in FIG. 1.
  • FIG. 4 is a plan view of the machine in position of moulding of two adjacent end walls of two successively arranged building elements.
  • FIG. 5 is a side view, showing partly in longitudinal section that portion of the machine which is shown in FIG. 4, the machine blade being in its upper position.
  • FIG. 6 is a similar View, the blade being shown in its lower position.
  • FIG. 7 is a further similar view, the blade and the machine moulds being in an inoperative position.
  • FIG. 8 is a view similar to FIG. 6 but showing the blade in accordance with another embodiment.
  • FIG. 9 shows a vertical section through the end walls after conclusion of the moulding but before separation of the coffers from one another, the blade being in the position shown in FIG. 8.
  • FIG. 10 is a plan view of the ends of the coffers in accordance with FIG. 9.
  • FIG. 11 is a vertical section through the machine along a line IX-IX of FIG. 8.
  • a concrete string having a length of 100450 meters is moulded in sliding moulds on a flat steel bed 1 with the aid of the machine.
  • the concrete string has an essentially U-shaped cross section, comprising a bottom 2 and longitudinal side walls 3.
  • Longitudinal armouring-irons 4 are provided at the string bottom and longitudinal armouring-irons 5 are provided at the upper edge of the side walls 3.
  • the concrete string is provided with a mesh-like armouring 6, at least at the bottom portion 2.
  • FIG. 1 The machine A for moulding the short or end walls 9, 10 of the building elements 7, 8 is shown diagrammatically in FIG. 1. It consists of a frame 11 carried by running Wheels 12 on longitudinal rails 13 at both sides of the bed 1. The frame also supports a container 14 holding concrete. At the bottom 15 of the container there is a dispensing opening 16 which can be adjusted by means of a damper 17. Below the opening 16 a rocker arm 19 is mounted so as to pivot about a horizontal shaft 18 and said rocker arm can be swung by means of a lever 20 into two positions in which concrete is dispensed.
  • a two cutting discs 23, 24 are arranged in pairs on two horizontal shafts 21 and 22, the discs of each pair being spaced apart a certain distance 25.
  • the shafts 21, 22 are driven in common and mounted at the outer ends of two link arms 26 and 27, the latter being pivotably mounted at their opposite ends about a horizontal shaft 28.
  • the link arms 26 and 27 are by means of links 29 hingedly connected to a lever 31 which is adapted to pivot about a shaft and insertable in recesses 32 and 33 formed at different levels in a front plate 34.
  • the machine also comprises a number of moulds, more specifically four outer moulds 35 and 36 (FIGS. 2 and 4) which are intended to give external support to walls 3 of the earlier shaped, moulded, string, and two inner moulds 37 and 38 which are intended both to give internal support to walls 3 and also serve as the mould for the future end walls 9 and 10 of the building elements 7 and 8.
  • the outer moulds 35 and 36 and the inner moulds 37 and 38 are interconnected by means of a supporting structure 39 which can be raised and lowered on the frame 11.
  • the outer moulds 35, 36 engage by means of a lower edge flange 40 with the inner face of two spacer rails 41 mounted in parallel on the bed 1 and having a downwardly inclining inner surface 42 at the lower edge.
  • the distance 43 (FIG. 2) between the spacer rails 41 determines the width of the building elements 7, 8 in question.
  • the two inner moulds 37, 38 are provided with one transverse wall 44 each.
  • the two longitudinal walls 45 of the inner moulds are each one provided with an opening 46 at the inner face of which is attached a diaphragm 47 of resilient material, such as crude rubber, the exterior of said diaphragm being covered with foam rubber.
  • Pistons 48 are provided, abutting against the inner face of the diaphragm 47, one such piston being arranged on each arm 50 and 51, respectively, the said arms being pivotable about vertical shafts 52, 53 on brackets 54, 55.
  • each inner mould 37, 38 is provided with a vibrator 58. Between the inner mould 37, 38 and the supporting structure 39 (FIG. 5) means for dampering the degree of swinging motion are arranged, such as for instance rubber cushions 59.
  • a blade 61 is vertically insertable so as to serve as a mould, the blade having a horizontal length 62 (FIG. 11) somewhat exceeding the width of the moulded concrete string and being formed at its lower corners with stepped portions 63 enabling the blade to reach by means of its center portion 64 down to the armouring 6 at the bottom 2 of the concrete string without being impeded by the longitudinal armouringirons 4 at the lower corner edges of the moulded string.
  • Hydraulically operated piston cylinders 65, 66 are adapted to urge blade 61 from an upper, inoperative position (FIG. 5) through the side walls 3 to the lower position shown in FIG. 11.
  • the thickness 67 of blade 61 (FIG. 5) agrees approximately with, or is somewhat smaller than the distance 25 (FIG. 1) between the cutting discs 23, 24 of each pair.
  • FIG. 8 illustrates a particular embodiment of the blade 61'.
  • the center portion of the blade extends at the front and back surfaces somewhat beyond the front and back surfaces at the vertical side edges of the blade such that the thickness 68 of the blade at the center portion thereof exceeds the distance 25 between the cutting discs 23, 24.
  • the machine A When the channel-shaped concrete string has been moulded and before it has had time to set, the machine A is moved over the string from one end thereof until the cutting discs 23, 24 attain a position wherein they are in a predetermined distance from the string end, this distance corresponding to the length of the coffer-shaped building element 8 to be produced (it being here imagined that one end wall has already been mounded at the end of the concrete string).
  • the cuting discs 23, 24, while rotating are swung downwards cutting the upper longitudinal armouring-irons 5 at two places.
  • the cuts made in the channel walls 3 by the cutting discs 23, 24 are designated in FIG. 5 by numeral 69.
  • the machine A is thereafter moved forwards until blade 61 is in a position straight above the section 70 of the channel walls 3 thus cut.
  • the outer moulds 35, 36 as well as the inner moulds 37, 38 are lowered into the position shown in FIGS. 2 and 5.
  • diaphragm 47 is urged outwards into abutment against the inner face of channel walls 3.
  • the blade 61 is lowered thereby cutting away the portion of the channel walls 3 lying between the cuts 69 as far down as to the position shown in FIG. 11.
  • a blade mounted to be raised and lowered in the gap between the inner moulds and to serve as an intermediate mould when moulding the end walls of two successively disposed building elements, the said blade being arranged to cut off that portion of the walls where the cutting means has severed the armouring-irons.
  • a machine as claimed in claim 1, wherein the cutting means are in the shape of cutting discs, the said discs being rotatably driven in two mutually spaced transverse vertical planes and being displaceable upwards and downwards in said transverse planes.
  • a machine as claimed in claim *1 further comprising nozzles mounted at the lower edge of the blade and connected with a source of compressed air for the purpose of blowing away any concrete mass present below and around the element armouring-irons at the element bottom.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
US899A 1969-01-16 1970-01-06 Machine for moulding the short sides of building elements having a u-shaped cross section Expired - Lifetime US3584354A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE543/69A SE318511B (enrdf_load_stackoverflow) 1969-01-16 1969-01-16

Publications (1)

Publication Number Publication Date
US3584354A true US3584354A (en) 1971-06-15

Family

ID=20256730

Family Applications (1)

Application Number Title Priority Date Filing Date
US899A Expired - Lifetime US3584354A (en) 1969-01-16 1970-01-06 Machine for moulding the short sides of building elements having a u-shaped cross section

Country Status (11)

Country Link
US (1) US3584354A (enrdf_load_stackoverflow)
JP (1) JPS4915607B1 (enrdf_load_stackoverflow)
AT (1) AT295379B (enrdf_load_stackoverflow)
CH (1) CH497958A (enrdf_load_stackoverflow)
DK (1) DK122586B (enrdf_load_stackoverflow)
FI (1) FI43829B (enrdf_load_stackoverflow)
FR (1) FR2028431A1 (enrdf_load_stackoverflow)
GB (1) GB1258734A (enrdf_load_stackoverflow)
NL (1) NL153796B (enrdf_load_stackoverflow)
NO (1) NO123928B (enrdf_load_stackoverflow)
SE (1) SE318511B (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941545A (en) * 1974-01-21 1976-03-02 Durastone Company Means for curving side by side concrete curb sections
CN110948660A (zh) * 2019-12-20 2020-04-03 江西佳鸿电瓷制造有限公司 一种瓷质绝缘子外形加工装置
CN114407178A (zh) * 2021-11-17 2022-04-29 贵州长通装配式建材有限公司 蒸压加气混泥土切割余料自动回收装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941545A (en) * 1974-01-21 1976-03-02 Durastone Company Means for curving side by side concrete curb sections
CN110948660A (zh) * 2019-12-20 2020-04-03 江西佳鸿电瓷制造有限公司 一种瓷质绝缘子外形加工装置
CN114407178A (zh) * 2021-11-17 2022-04-29 贵州长通装配式建材有限公司 蒸压加气混泥土切割余料自动回收装置
CN114407178B (zh) * 2021-11-17 2024-03-01 贵州贵仁生态砂科技有限公司 蒸压加气混泥土切割余料自动回收装置

Also Published As

Publication number Publication date
NL153796B (nl) 1977-07-15
JPS4915607B1 (enrdf_load_stackoverflow) 1974-04-16
NL7000330A (enrdf_load_stackoverflow) 1970-07-20
FR2028431A1 (enrdf_load_stackoverflow) 1970-10-09
DK122586B (da) 1972-03-20
FI43829B (enrdf_load_stackoverflow) 1971-03-01
NO123928B (enrdf_load_stackoverflow) 1972-02-07
AT295379B (de) 1971-12-27
DE2000220A1 (de) 1970-07-30
SE318511B (enrdf_load_stackoverflow) 1969-12-08
GB1258734A (enrdf_load_stackoverflow) 1971-12-30
DE2000220B2 (enrdf_load_stackoverflow) 1975-07-24
CH497958A (de) 1970-10-31

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